use std::collections::HashMap;
use std::fmt::Debug;
use std::fmt::Formatter;
use std::sync::Arc;
use bytes::Buf;
use http::StatusCode;
use log::debug;
use serde::Deserialize;
use super::core::parse_info;
use super::core::ChainsafeCore;
use super::core::ObjectInfoResponse;
use super::error::parse_error;
use super::lister::ChainsafeLister;
use super::reader::ChainsafeReader;
use super::writer::ChainsafeWriter;
use super::writer::ChainsafeWriters;
use crate::raw::*;
use crate::*;
#[derive(Default, Deserialize)]
#[serde(default)]
#[non_exhaustive]
pub struct ChainsafeConfig {
pub root: Option<String>,
pub api_key: Option<String>,
pub bucket_id: String,
}
impl Debug for ChainsafeConfig {
fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
let mut d = f.debug_struct("ChainsafeConfig");
d.field("root", &self.root)
.field("bucket_id", &self.bucket_id);
d.finish_non_exhaustive()
}
}
#[doc = include_str!("docs.md")]
#[derive(Default)]
pub struct ChainsafeBuilder {
config: ChainsafeConfig,
http_client: Option<HttpClient>,
}
impl Debug for ChainsafeBuilder {
fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
let mut d = f.debug_struct("ChainsafeBuilder");
d.field("config", &self.config);
d.finish_non_exhaustive()
}
}
impl ChainsafeBuilder {
pub fn root(&mut self, root: &str) -> &mut Self {
self.config.root = if root.is_empty() {
None
} else {
Some(root.to_string())
};
self
}
pub fn api_key(&mut self, api_key: &str) -> &mut Self {
self.config.api_key = if api_key.is_empty() {
None
} else {
Some(api_key.to_string())
};
self
}
pub fn bucket_id(&mut self, bucket_id: &str) -> &mut Self {
self.config.bucket_id = bucket_id.to_string();
self
}
pub fn http_client(&mut self, client: HttpClient) -> &mut Self {
self.http_client = Some(client);
self
}
}
impl Builder for ChainsafeBuilder {
const SCHEME: Scheme = Scheme::Chainsafe;
type Accessor = ChainsafeBackend;
fn from_map(map: HashMap<String, String>) -> Self {
let config = ChainsafeConfig::deserialize(ConfigDeserializer::new(map))
.expect("config deserialize must succeed");
ChainsafeBuilder {
config,
http_client: None,
}
}
fn build(&mut self) -> Result<Self::Accessor> {
debug!("backend build started: {:?}", &self);
let root = normalize_root(&self.config.root.clone().unwrap_or_default());
debug!("backend use root {}", &root);
if self.config.bucket_id.is_empty() {
return Err(Error::new(ErrorKind::ConfigInvalid, "bucket_id is empty")
.with_operation("Builder::build")
.with_context("service", Scheme::Chainsafe));
}
debug!("backend use bucket_id {}", &self.config.bucket_id);
let api_key = match &self.config.api_key {
Some(api_key) => Ok(api_key.clone()),
None => Err(Error::new(ErrorKind::ConfigInvalid, "api_key is empty")
.with_operation("Builder::build")
.with_context("service", Scheme::Chainsafe)),
}?;
let client = if let Some(client) = self.http_client.take() {
client
} else {
HttpClient::new().map_err(|err| {
err.with_operation("Builder::build")
.with_context("service", Scheme::Chainsafe)
})?
};
Ok(ChainsafeBackend {
core: Arc::new(ChainsafeCore {
root,
api_key,
bucket_id: self.config.bucket_id.clone(),
client,
}),
})
}
}
#[derive(Debug, Clone)]
pub struct ChainsafeBackend {
core: Arc<ChainsafeCore>,
}
impl Access for ChainsafeBackend {
type Reader = ChainsafeReader;
type Writer = ChainsafeWriters;
type Lister = oio::PageLister<ChainsafeLister>;
type BlockingReader = ();
type BlockingWriter = ();
type BlockingLister = ();
fn info(&self) -> AccessorInfo {
let mut am = AccessorInfo::default();
am.set_scheme(Scheme::Chainsafe)
.set_root(&self.core.root)
.set_native_capability(Capability {
stat: true,
read: true,
create_dir: true,
write: true,
write_can_empty: true,
delete: true,
list: true,
..Default::default()
});
am
}
async fn create_dir(&self, path: &str, _: OpCreateDir) -> Result<RpCreateDir> {
let resp = self.core.create_dir(path).await?;
let status = resp.status();
match status {
StatusCode::OK => Ok(RpCreateDir::default()),
StatusCode::CONFLICT => Ok(RpCreateDir::default()),
_ => Err(parse_error(resp).await?),
}
}
async fn stat(&self, path: &str, _args: OpStat) -> Result<RpStat> {
let resp = self.core.object_info(path).await?;
let status = resp.status();
match status {
StatusCode::OK => {
let bs = resp.into_body();
let output: ObjectInfoResponse =
serde_json::from_reader(bs.reader()).map_err(new_json_deserialize_error)?;
Ok(RpStat::new(parse_info(output.content)))
}
_ => Err(parse_error(resp).await?),
}
}
async fn read(&self, path: &str, args: OpRead) -> Result<(RpRead, Self::Reader)> {
Ok((
RpRead::default(),
ChainsafeReader::new(self.core.clone(), path, args),
))
}
async fn write(&self, path: &str, args: OpWrite) -> Result<(RpWrite, Self::Writer)> {
let writer = ChainsafeWriter::new(self.core.clone(), args, path.to_string());
let w = oio::OneShotWriter::new(writer);
Ok((RpWrite::default(), w))
}
async fn delete(&self, path: &str, _: OpDelete) -> Result<RpDelete> {
let resp = self.core.delete_object(path).await?;
let status = resp.status();
match status {
StatusCode::OK => Ok(RpDelete::default()),
StatusCode::NOT_FOUND => Ok(RpDelete::default()),
_ => Err(parse_error(resp).await?),
}
}
async fn list(&self, path: &str, _args: OpList) -> Result<(RpList, Self::Lister)> {
let l = ChainsafeLister::new(self.core.clone(), path);
Ok((RpList::default(), oio::PageLister::new(l)))
}
}